Winch system



FIG. 1 is a front perspective view of our winch system;

FIG. 2 is a front view thereof;

FIG. 3 is a back side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings depict portions of the winch system that form no part of the claimed design. 

CLAIM The ornamental design for a winch system, as shown and described. 